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Psammaster davidsoni
Taxonomy
Ophidiaster davidsoni was named by de Loriol and Pellat (1874). Its type specimen is holotype BNHM E 53996 and is a 3D body fossil. It is the type species of Psammaster.
It was recombined as Psammaster davidsoni by Fau et al. (2020).
It was recombined as Psammaster davidsoni by Fau et al. (2020).
Synonymy list
| Year | Name and author |
|---|---|
| 1874 | Ophidiaster davidsoni de Loriol and Pellat pp. 293-294 figs. pl. 26 fig. 13-14 |
| 1993 | Ophidiaster davidsoni Lewis p. 60 |
| 2020 | Psammaster davidsoni Fau et al. |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Psammaster davidsoni de Loriol and Pellat 1874
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. Fau et al. 2020 | Forcipulatacean asteroid with five parallel sided arms, rounded in cross section, and a small disc. Crossed shape ossicles, bearing numerous small acicular spines and a central granular spine of the same length. Arms with two rows of marginal, one carinal, one abactinal, and three rows of actinal ossicles on each side. Adambulacral rows comprised of alternating ossicles, one larger and one smaller, each bearing three to four spines. |